新疆生产建设兵团哈汉民族关系解读

新疆生产建设兵团在促进边疆社会发展和维护稳定方面发挥了十分重要的作用。兵团和谐的民族关系是兵团进一步发挥屯垦戍边历史作用的保证，通过对农八师哈萨克族与汉族杂居区的民族关系现状和传统风俗习惯的变迁对民族关系的影响的解读，进而进行经济学角度的分析，有利于我们把握兵团民族关系发展的规律。     

Strategic dynamic sourcing from competing suppliers with transferable capacity investment

We study the supplier relationship choice for a buyer that invests in transferable capacity operated by a supplier. With a long‐term relationship, the buyer commits to source from a supplier over a long period of time. With a short‐term relationship, the buyer leaves open the option of switching to a new supplier in the future. The buyer has incomplete information about a supplies efficiency, and thus uses auctions to select suppliers and determine the contracts. In addition, the buyer faces uncertain demand for the product. A long‐term relationship may be beneficial for the buyer because it motivates more aggressive bidding at the beginning, resulting a lower initial price. A short‐term relationship may be advantageous because it allows switching, with capacity transfer at some cost, to a more efficient supplier in the future. We find that there exists a critical level of the switching cost above which a long‐term relationship is better for the buyer than a short‐term relationship. In addition, this critical switching cost decreases with demand uncertainty, implying a long‐term relationship is more favorable for a buyer facing volatile demand. Finally, we find that in a long‐term relationship, capacity can be either higher or lower than in a short‐term relationship. © 2009 Wiley Periodicals, Inc. Naval Research Logistics 2009     

C2组织指挥控制关系的形式化描述*

针对C2组织的指挥控制关系目前还缺少很好地形式化描述方法,其量化研究比较困难,从C2组织的实体及实体之间的关系出发,形式化描述C2组织指挥(纵向)关系、横向关系、资源配置关系、执行关系等四种关系,最终构建出一个指挥控制关系网,为运用复杂网络理论以及图论等方法对指挥控制关系的量化分析研究提供基础。     

航天指挥控制体系构建的基本问题

航天指挥控制体系是航天力量运用体系的神经中枢，是指挥员和指挥机关对所属部队航天力量运用活动实施指挥、控制的基础。提出了航天指挥控制体系构建的基本要求；分析了航天指挥控制体系构建的基本要素；从体制、机构设置、指控关系等角度对航天指挥控制体系进行了初步构建，可为航天指挥控制体系的建立提供参考和技术支撑。     

谈英语教学中学生创造思维的培养

目前，我国外语教学普遍存在费时较多、收效较低的现象，特别是精读课教学，向来只注重给学生注入语言知识，而轻视学生创造思维能力的培养。要解决这一问题，外语教学工作者必须改变教学观念，避免在外语课教学中只重识记而轻思维这一现象。     

修订地方性消防法规需要审视的几个关系

随着消防法的修订颁布,目前各地适用的地方性消防法规的相关规定已经不适应新形势下消防法制建设的需要,亟待重新修订。通过对消防法、相关法律以及部门消防规章与地方性消防法规之间关系的审视和分析,为地方性消防法规的修订提供参考。     

Hydropolitics of the Nile: The case of Ethiopia and Egypt

This article analyses the political relationship between Ethiopia and Egypt. It aims to provide an analytical framework to unpack this complex relationship and assess the impacts that the Nile River has on the nature of this relationship. It further identifies geopolitical factors determining the impacts of the Nile River on frameworks of actions and political opportunity structures in which political actors operate. Accordingly, the different combinations of these determinants lead to the formation of political actors and ensuing actions that can fuel conflict, sustain the status quo or build peace. The article seeks to provide tentative answers to the following questions: what can be done or what mechanisms might be used to reduce the risk of conflict? What parties should participate and what will be their roles? And how can modern technology and science contribute to a possible solution?